The impact of higher voltage and current harmonics on the operation of electrical systems [PDF]
E3S Web of Conferences, 2019 The article deals with the assessment of impact of higher harmonics on the operation of variablefrequency electric drive systems used in processing units at mining enterprises. Beyond that, energy efficiency and operation experience of variable-frequency
Egorov A.N. +5 more
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Adaptive Control Strategy for a Pumping System Using a Variable Frequency Drive
Machines, 2023 Currently, the most implemented solution for driving a pumping system (PS) at variable speed is using a variable frequency drive (VFD). Because most of the VFDs have integrated only one proportional-integral (PI) frequency controller whose parameters ...
Dorin Bordeasu +3 more
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MODELING OF A CONTROLLED ELECTROMAGNETIC VIBRATION DRIVE WITH A VARIABLE RESONANT FREQUENCY
Технічна електродинаміка, 2023 The technology for the production of high-quality concrete products includes the vibration of the concrete mixture at various frequencies. For this, an electromagnetic vibration drive can be used, which has high reliability, durability and ...
О.О. Черно, А.Ю. Козлов
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Precise position control of ultrasonic motors using three parameters high speed switching method
Nihon Kikai Gakkai ronbunshu, 2021 The rotation speed of the ultrasonic motor depends on three parameters such as frequency, voltage and phase difference. In current mainstream drive circuits using a step-up transformer, ultrasonic motors are controlled frequency (rotation speed) by ...
Masato OKA, Kanya TANAKA
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Development of variable voltage variable frequency drive system for induction motor speed control [PDF]
, 2021 This project describes the development of a Variable Voltage Variable Frequency (VVVF) system that controls the speed of Induction Motor (IM) at specific speed.
Tan, Lorinna Mei Hua
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Direct torque control for dual three-phase induction motor drives [PDF]
, 2004 A direct torque control (DTC) strategy for dual three-phase induction motor drives is discussed in this paper. The induction machine has two sets of stator three-phase windings spatially shifted by 30 electrical degrees.
Bojoi, R. +4 more
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Optimization of a variable frequency drive pump working on a water tower [PDF]
E3S Web of Conferences, 2019 The development of the existing water supply system in towns and villages involves the use of frequency converters and specialized control algorithms that can maintain the pressure level established in the supply grid within certain limits.
Hruntovich N.V. +4 more
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Entanglement Rate for Gaussian Continuous Variable Beams [PDF]
, 2016 We derive a general expression that quantifies the total entanglement production rate in continuous variable systems, where a source emits two entangled Gaussian beams with arbitrary correlators.This expression is especially useful for situations where ...
Deng, Zhi Jiao +2 more
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Research on dynamic characteristics of variable frequency drive hydraulic winch system
Gong-kuang zidonghua, 2019 A closed-loop control simulation model of variable frequency drive hydraulic winch system was built using AMESim, and the dynamic characteristics of the hydraulic winch system under different load mutations were simulated and analyzed using the model ...
DING Ga
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IEEE Access, 2022 Variable-frequency drive (VFD) has been widely used in reverse osmosis desalination. Our purpose is to study how the VFD and pressure regulating valve affect the key parameters of reverse osmosis desalination and their action principle through ...
Shuai Chu +6 more
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